Question

The refractive index of glass is 3/2.What is the polarizing angle for glass

• A. ${56}^{\circ }{18}^{\prime }$
• B. ${60}^{\circ }$
• C. ${33}^0{70}^{{}^{\prime }}$
• D. ${10}^0$

Answer 1

The correct option is C ${33}^0{70}^{{}^{\prime }}$

$\mu =\tan i_p$

$i_p+r_p={90}^0$

${\tan }^{-1}\frac{3}{2}=i_p$

$\Rightarrow i_p={56}^0{30}^{\prime }$

$\therefore r_p={33}^0{70}^{{}^{\prime }}$

Hence,

option $\left(C\right)$ is correct answer.